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【28W Solar Charger with Digital Ammeter】 BigBlue Portable SunPower Solar Panel with 2USB(5V/4A Max Overall) for Camping, Folding and Waterproof, Compatible with Battery, Cellphones, Huawei, LG

4.2 4.2 out of 5 stars 88 ratings

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Brand BigBlue
Material Polycarbonate
Product dimensions 28.5L x 16W x 3.3H centimetres
Item weight 595 Grams
Efficiency High Efficiency

About this item

  • 👍Built-in Ammeter: The ammeter of this 28w solar panel charger can measure the current real-time value. Note that the value depends on your connected devices, sunlgiht intensity and cable used. If your device has an input current of 1A (such as the i Phone), the amount of ammeter will show between 0.8A and 1A in theory.
  • 👍Exclusive Smart IC Technology: With the built-in intelligence chip, our solar phone charger detects your device then deliver its fastest possible charging speed(single maximum usb output up to 5V/2.4A, dual maximum USB up to 4A). Dual-port applys to all the 5V Android devices and apple devices. Note: This solar charger is not compatible with the iPad Pro.
  • 👍High Conversion Efficiency: SunPower Solar Panels with higher solar conversion efficiency by up to 24%.4 carabiners allow you to hook your solar charger everywhere convenient to get solar access (trees, backpacks, vehicle, etc.). With compact size (11.1 × 6.3× 1.3in folded) and lightweight (21.0 oz) design, this folding solar charger is easy to carry for any outdoor activities such as camping, climbing, fishing etc.
  • 👍Special PET Polymer Surface: Industrial-strength PET polymer fabric protects your portable solar panel charger and your devices from occasional rain or wet fog. IPX4 waterproof level, but the USB ports and ammeter are not water-resistant, so keep them away from water while using. The pocket with a zip will keep your devices safe and clean while camping.
  • 👍Easy to Use: Please unfold four solar panels under outdoor direct sunlight( No cloud and no shadow), then connect your device to the usb port with your certificated cable. A micro usb cable is provided in our package and not included the lightning cable. Note: Please don't place the device inside the pocket attached when charging in order to avoid overheating then damage your devices.

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Product Description

1

The Perfect Companion for Adventures

BigBlue 28W Solar Charger with Digital Ammeter

  • Built-in Ammeter and pocket with Zip, this 28w solar charger keeps your devices safe and clean.
  • SunPower solar panel can be up to 24% solar conversion efficiency.
  • Lightweight and easy to carry. This 28w solar panel charger has the same size and thickness as a magazine.
  • Portabel solar charger, designed specifically for those people with passion for trekking, camping, hiking, picnics, fishing, boat, etc.
  • Solar charger with 2usb, compatible with most of 5V USB rechargeable devices, include the cellphones and power ban. Note: Our prodcut doesn't provide the apple lightning cable.
  • The package includes 4 hooks, allowing you to hook your solar panel everywhere (trees, backpacks, curtains, etc.)
  • Waterproof and Internal Chip: restart fonction when there are cloudy.

2

Note:

- 28W refers to the power of the solar panel, which is not equal to the actual output power of the USB port, because there will be some loss in order to maintain voltage stability and safety of equipment during the charging.

The power of the solar panel:

Our product has 4 solar panels, each piece is 7w; so the power is 4*7w=28W.

The actual output power means:

2 USB ports is respectively up to 5V/2.4A max and 5V/2.4A max, total output is 5V/4A Max

The total output of two output ports is 5V*4A=20W Max

- Our product is compatible with Apple device, pls use the original Apple cable.

- Any cloud cover arrives it may knock the value of ammeter down. We suggest you to replug the device and reopen the solar panels to reset the power controlle.

- This 28W solar charger can't charge the laptops and power station.

3

Portable Solar Panel for Camping!

  1. Our solar charger can't store the electricity, pls unfold four solar panels under the direct sunlight and then connect with your device.
  2. Please remember that Apple's devices has an inner chip that will stop the charge whenever its inner temperature gets too hot.
  3. To prevent charging the phone under the sun, we suggest to use a longer cable and keep the phone in a shadow area.
  4. Our solar panel charger isn't suitable for small current charging products (standard charging current is below 200mA), which will be continuous shutdown and restart.
  5. Our solar charger isn't compatible with the iPad Pro.
  6. If the sunlight is not enough, your cellphones will show message "accessory is not supported".

4

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Important information

Safety Information:

Warning:Due to the small dimension of this product, we recommend to keep it away from babies of 0-6 years old.

Customer reviews

4.2 out of 5 stars
4.2 out of 5
88 global ratings

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Customers say

Customers like the performance, weight and durability of the solar panel. For example, they mention it works well, is portable and well made. That said, opinions are mixed on charging.

AI-generated from the text of customer reviews

20 customers mention14 positive6 negative

Customers like the performance of the solar panel. They mention it works well under direct sunlight, the ammeter is very useful, and it charges their phones well. Some say that the product is good but they expected it to charge more faster.

"The product is very good, but i expected charge more faster, 20% in 40 minutes with perfect weather (the number in the display was 19)...." Read more

"Works well." Read more

"...Never worked again. Have to return. Other panels never had the digital metre on it and never had an issue...." Read more

"Works really good. Love you very much" Read more

7 customers mention7 positive0 negative

Customers are satisfied with the weight of the solar panel. They mention that it is very light, portable, and compact. Some say that the technology is not yet there.

"...It is quite compact, and the folding out format is ideal." Read more

"...It is very light and folds up quite small. I'm very happy with it." Read more

"Light weight and effective just make sure to use a good cable and had better results when you tilt it facing the sun instead of leaving it flat" Read more

"Works well and I love it’s portability." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the durability of the solar panel. They mention that it is well-made, durable, and light weight.

"Durable and the ammeter is handy" Read more

"Love it. Very durable easy to operate" Read more

"Very well presented. Sturdy structure" Read more

"Extremely well made tough. It delivers the the power to charge devices quickly." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the appearance of the solar panel. They mention that it is well presented and sturdy.

"These panels are brilliant… i used them every day in PNG and they kept my power back, camp light and head lamp all charged daily!!!" Read more

"Very well presented. Sturdy structure" Read more

"Nice panel..." Read more

10 customers mention6 positive4 negative

Customers are mixed about the charging of the solar panel. Some mention that it delivers the power to charge devices quickly, while others say that it doesn't charge the phone to full capacity, nor it charge the power bank to full capability.

"Got this for emergency times etc. I have been able to charge my tablet, phone and a battery pack with it... It works!" Read more

"Doesn't charge the phone to full capacity nor it charge the power bank to full capacity. You can use it for emergency purposes." Read more

"...day hike and on a sunny day, hanging over my backpack, it was able to charge my phone as well as keep a 10,000 mah battery topped up...." Read more

"...Unfortunately. I was never able to generate enough power for more than the phone. In the end it did not suit my needs" Read more

Top reviews from Australia

Reviewed in Australia on 12 August 2023
Verified Purchase
Got this for emergency times etc. I have been able to charge my tablet, phone and a battery pack with it... It works!
Reviewed in Australia on 25 December 2023
Verified Purchase
These panels are brilliant… i used them every day in PNG and they kept my power back, camp light and head lamp all charged daily!!!
Reviewed in Australia on 24 November 2019
Verified Purchase
The product is very good, but i expected charge more faster, 20% in 40 minutes with perfect weather (the number in the display was 19). Anyway is enough when one is in trouble and need it in the beach. I still recommend it.
3 people found this helpful
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Reviewed in Australia on 22 October 2023
Verified Purchase
Works well.
Reviewed in Australia on 29 October 2023
Verified Purchase
Didn’t change my iPhone 13 even 1% in full sunlight in over an hour.
Reviewed in Australia on 30 March 2023
Verified Purchase
I use this for charging a battery while camping. The ammeter really helps with placement of the panel to get maximum charge. It is quite compact, and the folding out format is ideal.
Reviewed in Australia on 21 May 2021
Verified Purchase
One of the best performing 28w portable solar panels in its class. The charge controller is also smart and better than other similar models in regards of achieving max charge current for various devices. I compared this panel to another similar 29w panel under identical lighting conditions side-by-side. And the Big Blue consistently outperform the other in getting higher charge current.
Do note that max current is not only determined by how much power the panel outputs, but is also dependent on the battery status of the device being charged and also the charging protocol supported by both devices. You would only see max charge current during the constant current phase, once the device is partially charged and switched over to constant voltage the current is restricted and progressively tapers as charge status approaches 100%.

With the high efficiency from sunpower solar modules you can still expect good decent output under overcast conditions, unlike the smaller 10w panels that struggles to achieve max charging current.

For charging power banks and mobile devices this 28w is the optimal format in terms of portability vs functionality. There are larger panels but won't charge any quicker as the charging rate is governed by charging protocol.
When folded out the 28w is also the largest one can tie outside a full sized backpack whilst travelling... and larger won't be possible.

This is now my go-to portable solar solution. I just bought the second unit in preparation for our Kakadu trip.
5 people found this helpful
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Reviewed in Australia on 6 October 2022
Verified Purchase
I certainly believe this may be the best solar panel on the market, as many other reviews claim. I've used it on only one hike, and letting it sit out in full sun while packing up my tent in the morning it might have achieved 8-10% charge. It might be useful for long remote trips, but for overnighters an external battery does me much better for similar weight and a fraction of the bulk. I'd suggest the technology hasn't really reached a tipping point in effectiveness yet.
2 people found this helpful
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